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Berembang
Sonneratia caseolaris
Family Lythraceae
updated
Oct 2016
Where seen? This tree is now rare in the wild. In Singapore,
there were only a few trees at Woodlands Town Garden and the upper
reaches of Sungei Seletar. In the past, it was also found in tidal
rivers in Balestier plain and Changi. The tree, however, has since
been replanted in Sungei Buloh. The tree is usually found in tidal
river-banks and creeks with mud banks and is considered the most inland
of the Sonneratia species.
Features: Tall tree 5-15m tall.
The young branches hang down like those of the weeping willow (Salix
babylonica) or angsana (Pterocarpus indicus). Bark slightly
fissued, young stems and branches smooth waxy brown. Conical pneumatophores
at first greenish grey with flaky bark that may grow to 1.5-2m tall
at maturity. Many narrow roots may grow horizontally into the substrate
at the base of the pneumatophore.
Leaves nearly circular, oval or eye-shaped (5-13cm) narrow at the
base, leathery, arranged opposite one another. The leaves have a 'tidy'
appearance compared to those of Perepat (Sonneratia
alba).
Flowers large (10cm diameter) with petals narrow and dark red, and
many long white stamens that are pink at the base, forming a powder-puff
shape. Stiff cup-shaped calyx with sepals broadly triangular and yellowish
greenish on the inside. The flowers open late in the evening and lasts
for one night only. They smell of butter or sour milk. According to
Giesen, the night-blooming flowers contain abundant nectar and are
pollinated by bats and moths. At dawn, bees and nectar-feeding birds
may visit.
Fruit globular (7.5cm) leathery with calyx lobes flat, spreading out
horizontally. Many bouyant seeds (1cm) embedded in fleshy pulp.
According to the NParks Flora and Fauna website, Berembang is the
preferred local food plant for caterpillars of the moths Indarbela
quadrinotata, Lymantria lepcha, Suana concolor, Trabala irrorata,
and Trabala vishnou. Fireflies are also associated with this
tree (see page on Sonneratia in
general).
The Atlas moth (Attacus
atlas) has been seen feeding on the tree.
Human uses: According to Burkill,
the young fruit is sour and used to flavour curries and chutnies.
When ripe, the fruit have a "cheese-like taste" and is eaten
raw or cooked. The pneumatophores are converted into corks for fishing
net floats by shaping them and boiling them in water. The timber is
not much used as the salt in it rusts iron nails and screws. Medicinal
uses include various parts of the fruit for haemorrhage and coughs.
According to Giesen, it makes poor timber but is occasionally used
in salt-water piling. The pnematophores are used for making wooden
soles of shoes.
Status and threats: It is listed
as 'Critically Endangered' on the Red List of threatened plants of
Singapore.
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Planted
in the Park
Pasir Ris Park, Apr 10
Red
petals on unopened flower.
Pasir Ris Park, Jan 10
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Calyx
lobes flat, spreading out horizontally.
Pasir Ris Park, Jan 10
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Calyx
sepals greenish on the inside.
Pasir Ris Park, Mar 11
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Petals
red, stamens pinkish at the base.
Woodland Park, Dec 09
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Wild
tree.
Woodland Park, Dec 09
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Woodland Park, Dec 09
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Young
branches hang down like
those of the weeping willow.
Pasir Ris Park, Dec 12
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Mating
Atlas moths on the tree.
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Atlas
moth cocoon on the tree.
Pasir Ris Park, Jan 10
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Sunbird
nesting in Berembang.
Pasir Ris Park, Jan 10
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Berembang
on Singapore shores |
Links
References
- Mishak Shunari & Benjamin C. Lee. 31 May 2017. Long-tailed macaque feeding on flowers of the mangrove apple tree, Sonneratia caseolaris. Singapore Biodiversity Records 2017: 66-67.
- Hsuan Keng,
S.C. Chin and H. T. W. Tan. 1990, The
Concise Flora of Singapore: Gymnosperms and Dicotyledons.
Singapore University Press. 222 pp.
- Tan, Hugh
T.W. and T. Morgany. 2001. Growing
the Native Plants of Singapore. BP Science Centre Guidebook.
168pp.
- Corners,
E. J. H., 1997. Wayside
Trees of Malaya: in two volumes.
Fourth edition, Malayan Nature Society, Kuala Lumpur. Volume 1:
1-476 pp, plates 1-38; volume 2: 477-861 pp., plates 139-236.
- Tomlinson,
P. B., 1986. The
Botany of Mangroves
Cambridge University Press. USA. 419 pp.
- Davison,
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
- Burkill,
I. H., 1993. A
Dictionary of the Economic Products of the Malay Peninsula.
3rd printing. Publication Unit, Ministry of Agriculture, Malaysia,
Kuala Lumpur. Volume 1: 1-1240; volume 2: 1241-2444.
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